Device for cutting chenille textures



July 18, 1933. BECHTQLD 1,918,369

DEVICE FOR CUTTING CHENILLE TEXTURES Filed July 11. 1950 2 Sheets$hget 1 July 18, 1933. A. BECHTOLD DEVICE FOR CUTTING CHENILLE TEXTURES Filed July 11, 1930 2 Sheets-Sheen 2 cuttingknives or blades as to produce an" slashing knives become Patented July 1 8, 1933 ARTHUR nncii ronn, or'wunzniw; G M ..j

DEVICE non cu'r'rme cnnmrmnrnxrunns Application filedjuly 1'1, 1930,Seria1 no. 467/244, an in Germany August 10, 1 929 v I It is an aCknowledgedfact that the beauti v ful, even appearance of, for example, Ax

minster -carpets largely depends on the correct cutting of the chenille texturesusedin the making, and it is, therefore, one of the objects-of this invention to so arrange" the even clean cutting action on the fibres of the texture. my

l The said knives or blades 1n the customary chenille cutting machines are closely ar' ranged upon a rapidly rotating cylinder and co-operate with a number of "stationary" knives or blades so as to cut thetexture into strips or bands. "These knives ,or blades which are usually in theform of forged soon and, to the present;- had to here ground several times a day by hand, asotherwise the fibres become torn'ratherthan cut,

.1 and the carpets made outof-such bands will eventually have afrough uneven appearance; f

However,regrinding-by hand never pro-,

cluces completely accurate cuttingedges and the chenille goods easily become uneven vin height. i

" order to achievethis object, the cutting cylinder, accordingto the invention,-is provided It is, therefore, anotherobject of vention to remedy, this drawbackand f OI'pr0 vide knives or blades whichm'ay always pi-esentkeen cutting edgesto'the fibres, and in with thin disc-shaped blades adapted to. be adjustedabout their axes in a manner simarranged so as tofco-act with a number of stationary blades. y y On the occasion of the used partbt the knives or blades becoming blunt, they will;

' of time isprevented as the'attendant of'a machine provided with knives accordingto this" invention can, by quick readjustment, j; maintain the full cutting efiiciency of his machine. Cutting of the chenillefibres with.

sharp knives instead'of using blunt cutters, evidently. leads to clean L cuts and, in conse quence, proper on l and a table in blunt comparatively adapted sh aft. I

duced; a

The acco npa ying drawings illustrate the invention by way ofexample; I, i

" vI Fig. 1 shows a portion of the cutting cylinders and knives in cross section. j Fig. .2 is a' longitudinal section there? through.-, V 1 d Fig. 3 illustrates a: back elevation of ,blade holder and cutting disc.

Figs. 4 and5 represent two of the cutting discs.

modified iorms .f chenille his be ng; e.

Fig. 6 is avlewinperspectiveofa'icutting cylinder having the knife mountings there'- association which the knives-operate. r 1 g In these-drawings the cutting. disc care riers 'jarearranged 'so as to. fit with their lugsorprojections g readily into the knife V being interposed. I The head 9' of the screw b older of thekkno'wn chenille cutting cylin- Jders a. i Q The-cutting disc his fastenedto the cutting, v

disc carrierfg by means ofa screw iand wing isnotched to form a ratchet with which a'resilient pawl s on the carrier g is' adapted to engage. HA portion. of the shaft ofthe screw z i is made of square sec tiony'so as tocause thef V thewing nu lm is turned. "For this purpose l the said disc.lcis{pr'ovided'with 'a 'sqliarehol' j i; 1 V

,tofitover', the square shank fof thel disc Jr taking a part they movementf'when Edis'c there is providedfai'p O i' the which takes into allele 1) ofthe' a whichis'thereby caused wrouow (mine nut m being tur'ned. Any other means to effect such followermovement may of course ,90. H m-may be provided with asquare centralhole i "7 and thus beturned directlyby. the square p'or be resorted to; for example the cutting blade tion "of the shaft 2'. The notches'ivgtotthe ratchet g? may" be :marked by-nurnbers, or"

otherwise, fwhich wouldsimplify' to the machine attendant the ork of readjusting and to indicate which parts of the circumference v of the'blades'have been broughtfinto opera .tive relation tothe table for cutting thenia teri'al. :It is the purpose of the; inventor that "when certainpart of the blade has become.

dulled, the blade may be turned to bring sharp portion of the circumference into operative relation with the table and the'blade'is held at the difierent positions of adjustment;

in the nannersta'tecl. lVhen the last numbered notch is reached during the adjustment and thafipo'rtionofthe blade which hat been in operation becomes dulled, the attendant Will know that removal of the blade for i-esliarpeliing is demanded; A The cutting Cylinder a and its shaft bhav ing slots 6 for attachment of the mountings for the knife are of conventional type ancl'it is shown in Fig; 6 as associated VVlt-llflfttlblt:

d a ranged under the cylinder, and the' saicl' tablc has a plurality of slotsfi for guiding the cuttingk ,The' upper surface of the table inis trans, cssely rlisposecl grooves'jcl' one *h side of the slots and parallel 'theree Withand when the fabric to be" cut is supp e "ted on thetable,tl1e Warp threads of the fa'hric "are guided in the said grooves klfl itvhereas the knives, ofco irsc, cut through the material 7 and the slots i 7 are kn vestravelt I l Vhat I clann 1s clearances in which the 1. In a device for'cutting chenilie goods,"

acu-tting' cylinder, means in coactive relation therewith i 01}, supporting material cutting .blacles on said cylinder, ineanstoflturn said cuttinghlacles soas to present nexy portions "o-ffcutting edges ,tothe fihres to be icut, and

nieansfor securing said blades. in their aclij i eel-position, incucling ineans forinclicathat parts otthe cutting bladeshave V b'eenused.

2. In a der ice for cutting chenille goods,

cuttingcylinder, means in coactive relation therewith for supporting inateri aha carrier attachecl tosaij cl cutting cylinder, a cutting blade turnably fixed to-the CELIElGlfiSZIld. cute Q tinglilacleantl carrier-each having hole,

v I screw associated with the carrieraclap tecl to', 1 45s toexert resilient pressure agains the out in ancltlye carrier and to .Qpositions;

' lle goods",

a Iutting v o s therewith .i )rsupporting.inaterialha carrier T "attached toe saicl cutting cylindena cutting pass through saicl holes, and means a1 ntainthe r relative n a rlevice for-cutting cheni "lincler, means inicoactive relation 'the'cari'ier at the sideoppositc meansto re its centre, and a supportfor thefgo'ocls tolie blade turnably fixed to ithe carrier, said cut ting-blade and carrier eachhaving a hole,

screw adapted to pass'through said holes, and

: awing; nut and a spring adaptedto exertresilient pressure against the" cuttingblade and the carrier. 7

4. Ina cleviceffor cutting chenille goods,

a cutting cylinden'means in coa'tive relation, V

thcreWithfor supporting inatci'ialja carrier *5, r-theretln'ough, 'a cutti'ng blade having a'ceng" tral hole and an out-of-the-centre hole there? attachecl tofsaid cylinder and having a hole through, ascrewaclapted to pass through a hole of the blade and the hole of thecarrier and having a portion of its shank of differ;

ent cross section to its other round portion, l

a Washer engaging-the cutting blade" and' t it 'tl ld'h l nus in v pm I o I l e ccconc n me o e thereof, nieansto turnsaicl vgrasher and means to indict (:"ftnrl a rrestlthe position of the cutter.

5. Ina device for cutting che nillegood s;a' cutting cylindeigjineans' in: coactl've relation therewith for supportingmaterial, a' 'carrier attach-ed to .llCl vcutting cyhnder and having- 1 a holc'tlierethrough, aQc utting blafcle having a cent mil hole and o-ut-of-the centre'fihole therethrough,"a screw adafite'cl ftopass through hole of the cutter and the hol'efof lnvinga portion of its shank a1. section to itso'ther round pin adapted thereof, a

fit'the secondenamecl hole ring anclwrg Inut adapted .to

e r it resilient pressure 'ainst the cutting I :and the earl; 1,11 hes' inthe head of said screw,"anrl' 'resil1en ,nieans to co- 'pcrate with saict'notchcsito "indicate and arrest the every partial' turn I ion of the c'utterfaft c F screw? I 4 In dev ce for cuttingochenille goods 7' hanclsja out i I t 2 .1 wzgysr V adjustable rate] a circular .h rle' mounted fon'jeach bracket, ably ad ust each {cutter about loating slotsinto which cit -the cutters Xtencl' in operation I he i peripheries ion, Washer engaging the cutting blade I he carrier ancllhavingfa n cylinder. having longi-f I bracketssepaint-he a softhe Cilll'idl n RTHUR. Bnonro'nn Y 

